Abstract
AbstractIn the present paper the authors describe a cleaning and disinfecting process for soft contact lenses. The process consists of immersing the lens to be treated in purified water, adding a tablet which liberates first a water soluble disinfecting compound and after a time-lag, releases a second water soluble compound. The second compound forms an oxidation-reduction system with the first one, so that the reactionnal contact of these two compounds results in their mutual degradation, giving by products which are harmless to the eye. For the formulation of the tablets, the authors had to conciliate the following systems:- redox system (disinfecting/neutralizing)- acido-basic system (effervescence)- delayed release system (film coated inner core).
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